This is called a One And
A Half Mount. As you will see it is what it says, not quite
a Double or Nothing. What you do is allow the yo-yo to swing around
your non-throwhand pointer only once and then it bring it around
and under your throwhand pointer. Again it helps to bring the yo-yo
as close to the string as possible.

Swing the yo-yo completely over your throwhand
and ending on the opposite side of your non-throwhand.

Bring your non-throwhand underneath the yo-yo
causing it to land on the string in the middle of your two hands.

Use your throwhand to land the yo-yo back on
the string so it is back into a One And A Half Mount.

After repeating steps 3,4, and 5 you are going
to let the yo-yo roll out from your throwhand and finally land it into
a Trapeze. I ended in a Ferris Wheel Dismount.